| 摘要 |
A field effect transistor includes a gate that is formed in a channel region of an active region defined on a substrate. A source is formed at a first surface portion of the active region that is adjacently disposed at a first side face of the gate. A drain is formed at a second surface portion of the active region that is opposite to the first surface portion with respect to the gate. The drain has a protruded portion that is protruded from a surface portion of the substrate.
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